Under what circumstances do you need a colonoscopy?

It is generally believed that colonoscopy is required for positive stool occult blood test, presence of intestinal inflammatory diseases, presence of clinical symptoms of colorectal cancer, etc.

1. Positive stool occult blood test

If the result of stool occult blood test is positive, it indicates the presence of colorectal bleeding, and the doctor may recommend further colonoscopy.

2. Patients with intestinal inflammatory diseases

, ulcerative colitis, Crohn's disease, etc. need colonoscopy, which can help the doctor evaluate the condition and monitor the treatment effect.

3. Clinical symptoms of colorectal cancer

If there are symptoms related to colorectal cancer, such as bloody stools, abdominal pain, and changes in bowel habits, the doctor may recommend colonoscopy to screen for the disease.